Arduino UNO R4 Tutorial - Setting IDE Environment

1】Upgrade your Arduino IDE

To support the R4, you need to download the latest version of Arduino IDE (version 2.1.1 or above).

If you have an older version of Arduino IDE,

you can open the command panel by pressing Ctrl+Shift+P within the Arduino IDE software.

Run the command “Arduino: Check for Arduino IDE Updates,” and

then check for the pop-up notification in the lower-left corner.

Alternatively, you can directly download the latest version of Arduino IDE from the Arduino official website

2】 Click on “Board Manager” and search for “UNO R4” to install the Arduino UNO R4 package.

3】 Once the installation is complete, select the Arduino UNO R4 development board.

TAG： Industrial USB to RS485 Converter Image-Modulation-Tutorial User Guide E-Paper Core3566004000 ESP32-S3 7inch LCD Display 7 inch TouchScreen 7B 1024&times;600 N16R8 CAN RS485 Sensor ESP32-S3 1.69inch Touchscreen LCD Round Display WiFi Bluetooth With QST Attitude Gyro Sensor QMI8658 Raspberry Pi 5 Raspberry Pi Pico 2 RP2350 1.75-inch AMOLED 1.75inch Round TouchScreen Display QMI8658 6-axis GPS SpotPear TOF Time-Of-Flight Laser Range Sensor Radar Module UART / I2C Port Raspberry Pi RP2040 LoRa Raspberry Pi Compute Module 4 CM4 IO Board Dual Gigabit Ethernet Mini Router Board FT232RNL USB TO TTL Industrial UART Can For Raspberry Pi 5 Terminal Debug ESP32-S3 Industrial 8-CH Relay IOT LAN WiFi /Bluetooth /RS485 /RJ45 Ethernet /POE Desktop Jetson Nano Expansion Board ESP32-S3 Development Board 1.85 inch Round LCD N16R8 DeepSeek AI Voice Chat Robot BOX Magnetic-charging Milk V Arducam MPUUART Raspberry Pi 5 PCIe to ISO 2-CH RS485 /2-CH RS232 / USB /UART / TTL

TAG： Microcontroller SpeedyBee F405 WING MINI Flight Controller FC ArduPilot INAV Drone Raspberry Pi 5 Audio Raspberry Pi 5 Active Cooler Raspberry Pi Auto Focus 12MP IMX708 Camera High Resolution Banana Pi development board Raspberry Pi Raspberry Pi IR Thermal Imagi Raspberry Pi Raspberry Pi High Performance AI at the Edge ESP32-S3 7inch LCD Display 7 inch TouchScreen 7B 1024×600 N16R8 CAN RS485 Sensor Raspberry Pi Pico Raspberry Pi Display GC2083 Computer Desktop Monitor Display Raspberry Pi 5 Camera Cable USB Watertight Camera 2MP PS5268 120dB HDR USB 2.0 Plug and Play Industrial 8-ch PWM RS485 pulse output module Modbus RTU rail SpotPear